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* Deep merge two or more objects and return a third object. If the first argument is * true, the contents of the second object is copied into the

* Returns true if the object is not null or undefined. * @param {Object} obj

* Shortcut for parseInt * @param {Object} s * @param {Number} mag Magnitude

* Set CSS on a given element * @param {Object} el * @param {Object} styles Style object with camel case property names

* Utility function to create element with attributes and styles * @param {Object} tag * @param {Object} attribs * @param {Object} style

* Extend a prototyped class by new members * @param {Object} parent * @param {Object} members

* Set or get an attribute or an object of attributes. Can't use jQuery attr because * it attempts to set expando properties on the SVG element, w

* Fix JS round off float errors * @param {Number} num

将指定Java对象转为json，并响应到客户端页面 @param o @param exclueds

* Handle color operations. The object methods are chainable. * @param {String} input The input color in either rbga or hex format

* Check if an element is an array, and if not, make it into an array.

Method to construct a curved path * Can 'wrap' around more then 180 degrees

* Discard an element by moving it to the bin and delete * @param {Object} The HTML node to discard

* Remove last occurence of an item from an array * @param {Array} arr * @param {Mixed} item

* set values

* Provide error messages for debugging, with links to online explanation

* Check for string * @param {Object} s

* Non-recursive method to find the lowest member of an array. Math.min raises a maximum * call stack size exceeded error in Chrome when trying to

* Check for array * @param {Object} obj

* Pad a string to a given length by adding 0 to the beginning * @param {Number} number * @param {Number} length